JP3434023B2 - Roadbed tamping equipment - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a track tamping device for compacting ballast laid on a track.

[0002]

2. Description of the Related Art Conventionally, a ballast is laid on a roadbed to support a sleeper on a track, and a roadbed tamping device is used as a device for pushing the ballast under the sleeper to solidify it. . The basic structure of this tamping device is provided with a pair of front and rear beaters that vibrate by a vibration motor, and an opening and closing means such as a cylinder for opening and closing the front and rear beaters and raising and lowering means. In order to solidify the ballast with this tamping device, first, a pair of beaters provided at the lower part of the device are inserted into the ballast so as to be sandwiched from the front and rear of the sleeper, and this beater is vibrated by using a vibration motor. Next, the front and rear beaters are opened and closed by sandwiching the sleepers by the opening / closing means, and the tip of the beater is pushed below the sleepers, so that the ballast is pushed under the sleepers to be solidified.

[0003]

Various types of roadbed tamping devices have been proposed, but in the conventional device, the beater is placed in the ballast by the driving force of the hydraulic cylinder provided on the pedestal of the device. Because it's something to insert
The reaction force from the ballast at the time of inserting the beater is transmitted to the hydraulic cylinder, the tamping tool support part, the device stand, etc.
High strength is required for each of these parts, which is a cause of increasing the size of the apparatus.

Further, in the conventional apparatus, a dedicated hydraulic cylinder is used even when the beater inserted into the ballast is opened and closed to push the ballast under the sleeper, but the reaction force of the ballast in this case is also the tamping tool part. Since it was received by the support part of the device and the frame of the device, it was difficult to reduce the size and weight of the device also for this reason. Further, in order to insert the beater into the ballast and push it down the sleeper as in the conventional case, two hydraulic cylinders for insertion and opening / closing are required, which complicates the structure of the device. Had changed.

Further, in the conventional device, the function of the anti-vibration means provided between the tamping tool section and the frame of the device is low,
The vibration of the tamping tool portion by the vibration motor is transmitted to the pedestal of the device, which causes the durability of the device to be impaired and the working environment to be deteriorated. In particular, when the beater is inserted into the ballast, the tamping tool part vibrates in any of the front, back, left, and right directions due to the reaction force from the ballast, so vibrations generated in such complicated directions are effectively mitigated. The development of a means to do so was desired.

The present invention was proposed in order to solve the problems of the prior art as described above, and its first object is to insert the beater into the ballast and to open and close it on the sleeper side. By using a single lifting cylinder, the reaction force from the ballast that is applied to the support of the tamping tool and the pedestal of the device can be reduced, and the device can be made smaller and lighter and the device configuration can be simplified. To provide a tamping device.

A second object of the present invention is to provide a track bed tamping device which can effectively reduce the vibration of the slider and the link and the connecting portion of the link and the supporting member of the tamping tool.

A third object of the present invention is to provide a bed tamping device which can keep the angle of the beater relative to the ballast appropriate.

A fourth object of the present invention is to provide a roadbed tamping device capable of absorbing vibrations from two orthogonal directions transmitted to a support member of a beater.

A fifth object of the present invention is to provide a roadbed tamping device capable of absorbing large vibration in one direction and normal vibration in other directions.

A sixth object of the present invention is to provide a bed tamping device capable of effectively absorbing vibrations in all directions.

A seventh object of the present invention is to provide a track tamping device capable of properly maintaining the angle of the beater with respect to the ballast regardless of whether the track is on a flat ground or a slope.

An eighth object of the present invention is to provide a roadbed tamping device which can prevent the tamping tool part from swaying due to vibration during movement when the device on the track is moved and stopped in order to adjust the tamping position. To do.

[0014]

In order to achieve the above object, the invention of claim 1 provides a vibration motor and a vibration motor.
Tamping tool with beater that vibrates with data
Section, a pedestal provided with this tamping tool section, and the gantry
A guide member provided in the vertical direction on the base and this guide portion
A slider that can be lifted and lowered by the material, and
It is installed between the sliders, and this slider is
Roadbed provided with a lifting cylinder for lifting and lowering along a member
In the tamping device,
The tip of the link rotates vertically around the supported spindle.
And rotatably supported at the tip of this link via a support shaft
Supporting member for the tamping tool part and the supporting member
And the tamping tool part are connected via a vibration-proof member.
Connecting means for connecting the slider and the slider.
The tamping tool part is opened and the lifting cylinder is opened.
It is characterized by descending due to its own weight when it becomes a state
To do.

The invention of claim 2 is characterized in that a vibration isolating member is provided on a support shaft portion connecting the slider and the link and the link and the supporting member of the tamping tool portion.

According to a third aspect of the present invention, a stopper is provided for restricting a rotation angle of the link with respect to the slider and the support member.

According to a fourth aspect of the present invention, the connecting means provided between the tamping tool portion and its supporting member is provided with first and second connecting shafts arranged in orthogonal directions, each connecting shaft and the tamping tool portion, or It is characterized in that it is composed of a vibration isolating member provided between the supporting members.

According to a fifth aspect of the present invention, one of the vibration isolating members provided on the first and second connecting shafts is a block vibration isolating member for cushioning vibrations along the axial direction of the connecting shaft, and the other is connected. The vibration-damping member provided on the shaft is a cylindrical vibration-damping member that wraps around the connecting shaft.

The invention of claim 6 is characterized in that both the vibration isolating members provided on the first and second connecting shafts are cylindrical vibration isolating members that wrap around the respective connecting shafts.

The invention of claim 7 is characterized in that biasing means for biasing the tamping tool portion toward the gantry side is provided between the slider and the tamping tool portion or the supporting member.

The invention of claim 8 is characterized in that an elastic buffer member and a smooth member having a smooth surface are provided between the slider and the tamping tool portion at positions facing each other. .

[0022]

In the invention of the first aspect having the above-mentioned structure, the lifting cylinder is brought into a free state in a state where the entire tamping tool portion supported by the slider is pulled up above the guide. Then, the entire tamping tool part falls along with the guide along with the slider due to its own weight.
The momentum and the vibration of the beater cause the beater to be inserted into the ballast. Since the beater, the vibration motor, the link, and the like that compose the tamping device are inserted into the ballast by their own weights, the driving means such as the lifting cylinder for inserting the beater into the ballast is downsized. It Further, a mechanism for receiving a reaction force applied from the ballast at the time of inserting the beater is not required, and the supporting portion of the tamping tool portion can be reduced in size and weight.

After inserting the beater into the ballast as described above, in order to push the ballast down the sleepers by the beater, the lifting cylinder is driven by using the contact point between the root of the beater and the ballast as a fulcrum. By rotating the link and moving the tamping tool part like a lever, the tip of the beater is moved to the lower part of the sleeper.
At this time, the reaction force that pushes in the ballast is received by the ballast itself serving as a fulcrum, so that the reaction force is not transmitted to the support portion of the tamping tool portion, and the support portion can be reduced in size and weight.

Further, since the tamping tool portion and its supporting portion are connected by the connecting means having the vibration isolating member, vibrations transmitted from the tamping tool portion side to the supporting member and the pedestal of the apparatus are connected by the vibration isolating member. Will be alleviated.

According to the second aspect of the present invention, even if the tip of the beater hits the ballast when the beater is inserted into the ballast, the support shaft of the link and the supporting member has a vibration-proof structure. Easily removed and inserted between ballasts. As a result, the beater can be easily inserted into the ballast without receiving a large reaction force.

In the invention of claim 3, since the rotation range of the link is limited by the stopper, when the beater is inserted into the ballast, the angle of the beater with respect to the ballast can be appropriately maintained, and the beater can be inserted. Work is carried out smoothly and effectively.

According to the fourth aspect of the present invention, as the vibration isolating means provided between the tamping tool portion and the supporting member thereof, a vibration isolating member is provided on each of the first and second connecting shafts arranged in the orthogonal direction. Therefore, it is possible to mitigate vibration from any direction transmitted to the support member of the beater. In particular, a vibration damping member such as rubber has a directional spring constant depending on its shape. Therefore, by disposing two vibration damping members in the directions of orthogonal twists, the combined spring constant becomes small, and the vibration damping effect is reduced. Is improved.

According to the invention of claim 5, the block-shaped vibration-damping member can absorb a large vibration along its axial direction, and the cylindrical vibration-damping member oscillates in all directions radiating around its support shaft. Can be absorbed. Therefore, except that the block-shaped vibration-damping member provided on one of the connecting shafts reduces large vibrations along the axial direction, and the block-shaped vibration-isolating member provided on the other connecting shaft alleviates the vibration. Vibration in the direction can be alleviated.

According to the sixth aspect of the invention, the vibrations in all directions can be effectively absorbed by the two cylindrical vibration damping members arranged in the orthogonal directions.

According to the seventh aspect of the invention, the tamping tool portion is urged toward the gantry side by the urging means provided between the slider and the tamping tool portion. Therefore, when tamping the ballast of the inclined surface. Is oriented in a direction in which the tamping tool unit and the gantry are substantially orthogonal to the inclined surface. Therefore, the work of pushing the ballast under the sleeper by the beater can be surely performed as in the flat ground.

According to the eighth aspect of the present invention, since the elastic cushioning member and the smooth member having the smooth surface are provided at the opposing positions between the slider and the tamping tool portion, the apparatus is moved. It is possible to prevent shaking of the tamping tool portion due to vibration when the tamping tool is moved.

[0032]

Embodiments of the present invention will be specifically described below with reference to the drawings.

(1) Overall configuration of the first embodiment: FIGS. 1 to 4 FIGS. 1 to 4 are side views showing the basic configuration of the first embodiment, and FIG. 1 is a tamping tool section. 2 is a state in which the beater is inserted into the ballast, FIG. 3 is a state in which the ballast is pushed in by the beater, and FIG. 4 is a working example in which the sleeper interval is different.

As shown in FIG. 1, the roadbed tamping device of the first embodiment is provided with a pair of front and rear sides with a sleeper T sandwiched therebetween, and the beater tips of the front and rear tamping devices are pushed downward from both sides of the sleeper T. Thus, the ballast is solidified below the sleeper T. Each of the tamping devices arranged before and after the sleeper T includes a tamping tool unit 1 including a vibration motor 2 and a beater 3, a guide member 5 vertically provided on a pedestal 4 of the device, and the guide member 5. And a slider 6 supported so as to be able to move up and down.

A supporting member 8 for a tamping tool is attached to the slider 6 via a link 7, and the tamping tool portion 1 is supported on the supporting member 8 via a connecting means 9. That is, the spindle 6a provided on the slider 6
The base portion of the link 7 is rotatably attached to the shaft 7, and the tip end of the link 7 and the support member 8 of the tamping tool portion 1 are rotatably connected by a support shaft 8a.

The slider 6 is provided with a pair of stoppers 10 and 11 for restricting the rotation range of the link 7 with respect to the slider 6. The support member 8 of the tamping tool unit 1 is provided with stoppers 12 and 12a that regulate the rotation range of the tamping tool unit 1 and the link 7. Stand 4
The base of the lifting cylinder 13 is attached to the. The tip of the piston rod of the lifting cylinder 13 is connected to the slider 6.

Structure of connecting means and vibration-proof member ...
9 The details of the tamping tool unit 1 and its supporting member 8 and their connecting means 9 will be described with reference to the enlarged views of FIGS. 5 and 6 and the exploded perspective view of FIG.

The tamping tool section 1 is provided with a pair of support frames 21 and 22 arranged in parallel.
The vibration motor 2 is fixed between the two, and the upper part of the beater 3 is fixed to the lower part of the one support frame 21. Support frame 21,
The upper part of 22 is connected by a mounting plate 23, and the support frame 2
A frame-shaped tamping tool portion 1 is formed by the vibration motors 1 and 22, the vibration motor 2, and the mounting plate 23.

On the other hand, the supporting member 8 of the tamping tool section 1
Is a prismatic member as a whole, and a supporting shaft 8a for connecting to the link 7 is inserted in the upper part thereof. This support member 8
Of the end plates 30, 30 facing each other, that is, the beater 3
In the middle of the plane orthogonal to the opening / closing direction of the first mounting hole 3
1, 31 are provided. On the other hand, second mounting holes 33, 33 are provided in the lower portions of the side plates 32, 32 of the supporting member 8 facing each other, that is, in the lower portion of the surface parallel to the opening / closing direction of the beater. In addition, in the present embodiment, the portion of the end face plates 30, 30 where the first mounting holes 31, 31 are provided is a position recessed inward by one step from the other portions.

The connecting means 9 for connecting the tamping tool portion 1 and the supporting member 8 as described above is for inserting the first and second connecting shafts 41 and 42 which are orthogonal to each other and for inserting these connecting shafts 41 and 42. It comprises first and second blocks 43,44. As shown in the perspective view of FIG. 9, each of the first and second blocks 43 and 44 has a rectangular parallelepiped shape, and has a central portion for inserting the first and second connecting shafts 41 and 42. The shaft holes 43a and 44a are open. The first and second blocks 43 and 44 are respectively provided with shaft holes 43.
a and 44a are integrated in a state where they are vertically stacked in a direction orthogonal to each other. Of these, the mounting plate 23 provided on the upper portion of the tamping tool unit 1 is fixed to the ceiling surface of the first block 43 located above.

The first connecting shaft 41 is screwed into the shaft hole 43a of the first block 43 located above. The first connecting shaft 41 is a shaft having a relatively small diameter, and a pair of block-shaped protective shafts made of elastic members such as rubber are sandwiched between the first connecting shaft 41 and the first block 43. Swing members 45, 45 are inserted. The first connecting shaft 4 in which the block-shaped vibration-damping members 45, 45 are fitted
Both ends of 1 are respectively inserted into the first mounting holes 31 formed in the end face plate 30 of the support member 8 and fixed to the end face plates 30 on both sides by the plate member 46 and the nut 47 fitted from the outside of the end face plate 30. ing. As a result, as shown in the sectional view of FIG. 7, the first block 43 is connected to the support member 8 via the first connecting shaft 41, and the first block 43 and the end face plate of the support member 8 are connected. Block-shaped anti-vibration members 45, 45 are sandwiched between 30, 30.

The second connecting shaft 42 is inserted into the shaft hole 44a of the second block 44 located below. The second connecting shaft 42 has a relatively large diameter, and a tubular vibration-proof member 48 is fitted in the central portion of the second connecting shaft 42. Second block 44
And the second connecting shaft 42 are integrated. in this case,
The tubular vibration-damping member 48 and the second block 44 are the ring 49 and the bolt 50 provided on both surfaces of the second block 44.
Is fixed by. A pair of collars 51, 51 are inserted in the second connecting shaft 42 so as to sandwich the second block 44.

Collars 51, 5 at both ends of the second connecting shaft 42
1 is inserted into the second mounting hole 33 formed in the side plates 32, 32 of the support member 8, and the cylindrical vibration isolator 48
Prevents the connecting shaft 42 from being displaced in the axial direction, and the side plate 32,
Ring 52 and nut 53 fitted from the outside of 32
Is fixed by. As a result, as shown in the sectional view of FIG. 8, the second block 44 is connected to the support member 8 through the second connecting shaft 42, and the second block 44 and the second connecting shaft 42 are connected. Between the cylindrical vibration-proof member 48
However, the collar 51 is sandwiched between the second block 44 and the end face plate 30 of the support member 8.

(2) Operation of the first embodiment In the apparatus of the first embodiment having the above structure,
Tamping work on the roadbed is performed as follows.

When the tamping device for pushing in the ballast is fed, for example, as shown in FIG. 1, the piston rod of the lifting cylinder 13 is pulled in and the slider 6 is guided along the guide member 5 for each of the front and rear tamping devices. Let it rise. Then, the tamping tool portion 1 connected to the slider 6 via the link 7 is also pulled up above the rail and put in the stored state. At this time, the tamping tool portion 1 tries to descend due to its own weight, but since the rotation range of the link 7 is restricted by the stopper 10 provided on the slider 6, the link 7 is at a position where it is rotated obliquely downward. The slider 6 and the link 7 are held and are bent at a constant angle. Further, the stopper 12 provided on the support member 8
Touches the upper surface of the link 7, and the movement of the tamping tool unit 1 is restricted.

In order to perform the tamping work on the roadbed, first, the vibration motor 2 is driven to vibrate the beater 3, and then the lifting cylinder 13 supporting the tamping tool section 1 is brought into a free state. Then, the slider 6 in the raised position
Also, the tamping tool portion 1 connected thereto descends along the guide member 5 due to its own weight, and as shown in FIG. 2, the beater 3 vigorously moves into the ballast due to its own weight of the tamping tool portion 1 and the acceleration of the fall. Is inserted. Further, the vibration of the beater tip causes it to sink deeper into the ballast. Furthermore, if the tip of the beater 3 rides on the grain of ballast and the beater 3 cannot settle, the link 7
Is attached to the connecting portion between the support shaft 6a provided on the slider 6 and the support shaft 8a of the support member 8 of the tamping tool portion 1 at the vibration isolating member 6.
b and 8b are provided, these vibration isolation members 6
Due to the deformation of b and 8b, the tip of the beater 3 is appropriately displaced, so that the ballast particles can be inserted into the ballast while avoiding them.

When the lifting cylinder 13 is driven and the piston rod is extended while the beater 3 is thus inserted in the ballast, the slider 6 is further lowered by the force of the lifting cylinder. At this time, in the tamping tool unit 1, the beater 3 is inserted into the ballast, and the descending speed decreases due to the resistance of the ballast. As a result, the pressing force of the lifting cylinder 13 via the slider 6 acts in the direction of rotating the link 7 about the support shaft 8a on the tamping tool 1 side. As a result, as shown in FIG.
Is regulated by the stopper 11, and the slider 6 and the link 7 are
The angle between and becomes close to 180 degrees, and the upper portion of the tamping tool portion 1 is pressed in the direction away from the slider 6. Along with this, the beater 3 moves like a lever with the ballast in contact with the root portion as a fulcrum, and the tip of the beater 3 moves below the sleeper T in the direction of pushing the ballast. At this time, the beater 3 is provided with the stopper 12 provided on the support member 8.
It rotates until a is brought into contact with the link 7 and regulated.

Hereinafter, by repeating the raising and lowering operation of the slider 6 by the raising and lowering cylinder 13, the angles of the slider 6, the link 7 and the tamping tool portion 1 are changed, and the beater 3 is set on the sleeper T with the ballast of the root portion as a fulcrum. To open and close.

In the above description, the tamping devices arranged in the front and rear (longitudinal direction of the rail) with the sleeper T sandwiched therebetween are simultaneously driven, and the sleeper T is sandwiched from the front and the rear to solidify the ballast. For example, when the intervals between the sleepers T are different or there is an obstacle such as a point or a railroad crossing, it is possible to use only one tamping device to compact the ballast as shown in FIG. Is. Although not shown, the entire tamping device may be movable along the guide, and when there is a card rail, it may be moved in the longitudinal direction of the sleeper T by a cylinder.

Anti-Vibration Function As described above, when the ballast is compacted, the vibration motor 2 vibrates the beater 3 and simultaneously the entire tamping tool section 1 vibrates. In the present embodiment, the block-shaped vibration isolating member 45 and the tubular vibration isolating member 48 provided in the connecting means 9 portion alleviate the transmission of the vibration on the tamping tool 1 side to the support member 8 and the link 7 side.
That is, the vibration of the tamping tool unit 1 is transmitted to the first block 43 fixed to the mounting plate 23 above the tamping tool unit 1 and the second block 44 integrated with the first block 43.

However, since the block-shaped anti-vibration member 45 fitted to the first connecting shaft 41 is arranged between the first block 43 and the end face plate 30 of the support member 8,
Vibrations along the axial direction of the first connecting shaft 41 are absorbed and alleviated by the deformation of the block-shaped vibration isolator 45. Further, vibrations in other directions (vibrations in a direction orthogonal to the axial direction of the first connecting shaft 41) that cannot be absorbed by the block-shaped vibration isolating member 45 have a cylindrical shape fitted around the second connecting shaft 42. The vibration-proof member 48 is absorbed by being deformed. That is, since the tubular vibration-damping member 48 absorbs vibration by changing the wall thickness in the radial direction, it is possible to absorb vibration in all radial directions centering on the second connecting shaft 42. . Further, in the present embodiment, the vibration along the axial direction of the second connecting shaft 42 can be absorbed by the axial shearing deformation of the tubular vibration isolator 48.

As described above, according to the first embodiment, the block-shaped vibration isolating member 45 provided on the first connecting shaft 41 and the tubular vibration isolating member 48 provided on the second connecting shaft 42 orthogonal thereto. By combining with, it is possible to effectively alleviate vibrations in either direction. Especially, in the tamping device, in order to withstand the compaction force of the ballast by restricting the lateral shift of the beater when inserting or opening the ballast of the beater,
The vibration damping member between the tamping tool unit 1 and its supporting member 8 is required to have high rigidity. However, according to the present embodiment, the two types of vibration isolating members provided on the first and second connecting shafts that are orthogonal to each other as described above, while using a highly rigid vibration isolating member, the composite spring of the entire connecting means 9. The constant can be reduced, and the vibration damping effect can be improved.

Further, a vibration isolating member is provided on the support shaft 6a connecting the slider 6 and the link 7 and the support shaft 8a connecting the link 7 and the supporting member 8, and the entire tamping tool 1 is suspended by the link 7. By lowering it, it is possible to more effectively prevent the vibration of the tamping tool section 1 side from being transmitted to the gantry side of the device, and even if the tip of the beater 3 hits the ballast grain when the beater 3 is inserted, the support shaft 6a and the support shaft 6a are supported. The vibration-proofing member 8a has an effect that the tip of the beater 3 is disengaged from the ballast grains, and the tip of the beater 3 easily enters between the ballasts.

(3) Structure of the Second Embodiment In the structure of the first embodiment as described above, the tamping tool portion 1 about the support shaft 8a is highly rotatable. Therefore, when performing the tamping work on the inclined surface, as shown in FIG.
Rotates about the support shaft 8a and faces in the vertical direction. Then, it is difficult to align the sleeper T with each other, and it is difficult to tamper the ballast directly under the sleeper T. The second embodiment is proposed to deal with this. The second embodiment will be described below with reference to the drawings. 11 to 12 are side views showing the basic configuration of the second embodiment. FIG. 11 is a side view of the present embodiment installed in a vehicle, and FIG. 12 is a view of a slider and a tamping tool portion in the present embodiment. An enlarged side view is shown. The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

As shown in FIG. 11, a mounting frame 61 is provided in front of the vehicle 60 that can travel on the track U. An operation box 62 and an operation seat 63 are fixed to the rear of the vehicle 60 by support pipes. To the left and right of the vehicle 60 (width direction of the track U),
The frame 4 is vertically supported by the mounting frame 61. Before and after the left and right mounts 4, as in the first embodiment,
The tamping tool unit 1 is provided via the slider 6, the link 7, and the support member 8. Then, as shown in FIG. 12, the support members 8 of the front and rear tamping tool parts 1 are
One end of the coil spring 64 is connected. The other end of the coil spring 64 is connected to the lower end of the slider 6, and the tamping tool section 1 is biased toward the gantry 4 side by the coil spring 64.

On the supporting frame 66 on the gantry 4 side, a cushioning member 67 made of urethane rubber or an elastic body having abrasion resistance is provided at a position facing the slider 6. On the other hand, the side surface of the slider 6 on the side of the tamping tool unit 1 has a plate 6
It is formed by 8. At the lower part of the plate 68, at a position contacting the cushioning member 67 on the tamping tool unit 1 side,
A smoothing member 69 made of self-lubricating resin is provided. The self-lubricating resin is a material having better wear resistance than general nylon, and the smooth member 69 made of this material has a smooth surface in contact with the cushioning member 67.

(4) Operation of the second embodiment In the second embodiment having the above-mentioned structure, the tamping work of the bed is performed as follows. In this embodiment, the work on the flat ground can be performed in the same manner as in the first embodiment, and the description thereof will be omitted. That is, as shown in FIG. 13, first, the operator rides on the operation sheet 63 and operates the operation box 62 to drive the vehicle on the sloped track U so that the gantry 4 comes above the target sleeper T. To align. At this time, the gantry 4 is oriented in a direction orthogonal to the track U and the slope. Since the tamping tool part 1 on the valley side is biased toward the gantry 4 side by the coil spring 64, when the gantry 4 faces in the direction orthogonal to the slope, the tamping tool part 1 also moves in the direction substantially orthogonal to the slope. Turn to. Further, since the tamping tool part 1 on the mountain side is restricted from rotating downward by the cushioning member 67 and the smoothing member 69, when the gantry 4 is oriented in a direction orthogonal to the slope, the tamping tool part 1 also becomes a slope. The direction is almost orthogonal to the direction. Then, the beater 3 is positioned in front of and behind the target sleeper T directly below the gantry 4. In this state,
Similar to the first embodiment, the slider 6 is lowered to perform the tamping work. Since the beater 3 is located at the front and the rear with the sleeper T sandwiched between the beater 3 and the flat ground, the tamping work similar to the flat ground can be performed.

Further, when performing tamping work under another sleeper T, the slider 6 is raised to pull out the beater 3 of the tamping tool section 1 from the ground. Then, the vehicle is driven to move above the desired sleeper T. At this time, the buffer member 67 provided on the support frame 66 and the slider 6
Since it is in contact with the smoothing member 69 provided in the, the vibration during the movement is absorbed by the cushioning member 67, and the shaking of the tamping tool unit 1 is prevented. Therefore, the beater 3 can be accurately aligned with the sleeper T. Further, since the surface of the smooth member 65 is processed smoothly, the tamping tool section 1 can be smoothly rotated during the tamping work.

(5) Other Embodiments The present invention is not limited to the above-mentioned embodiments, and includes, for example, other embodiments as shown in FIGS. 14 to 18. That is, in the third embodiment, the cylindrical vibration isolating member 48 is provided on each of the first and second connecting shafts 42a, 42 which are orthogonal to each other. In this case, like the second connecting shaft 42 of the first embodiment, cylindrical vibration isolating members 48 are provided at the central portions of the connecting shafts 42a, 42, respectively.
The first and second blocks 43a and 44 and the respective connecting shafts 42a and 42 are fitted to each other via. In addition, each connecting shaft 42a,
Collars 51a and 51 are fitted to both ends of 42 so as to sandwich the blocks 43a and 44, respectively, and the collars 51a and 51 are arranged between the support member 8 and the blocks 43a and 44. Also in such a third embodiment, the vibrations in all directions generated by the vibration motor can be effectively absorbed and alleviated by the two cylindrical vibration isolating members 48 arranged in the orthogonal direction.

Further, in the second embodiment, the urging means for urging the tamping tool part 1 toward the gantry 4 side is not limited to the coil spring 64, but a leaf spring or the like may be used.
It may be configured to be provided between the slider and the slider 6. Then, the buffer member 67 is provided on the side of the slider 6 on the side of the plate 68,
The smooth member 69 may be provided on the support frame 66 side of the tamping tool unit 1. Furthermore, the material of the buffer member 67 is not limited to urethane rubber, and any material having elasticity may be used. Further, the material of the smooth member 69 is not limited to the self-lubricating resin, and may be any material that is resistant to frictional heat and has a smooth surface.

[0061]

As described above, according to the present invention, the beater is inserted into the ballast by utilizing its own weight such as the tamping tool portion, and the tamping tool portion is twisted like a lever with the ballast at the base portion of the beater as a fulcrum. However, since the tip of the beater is pushed below the sleepers, there is little reaction force from the ballast, and it is possible to provide a compact and lightweight bed tamping device with a simple structure.

More specifically, in the invention of claim 1, since the beater can be inserted into the ballast by the weight of the tamping device, the driving means can be miniaturized. Also, a mechanism for receiving a reaction force applied from the ballast when the beater is inserted is unnecessary, and moreover,
After the beater is inserted, the reaction force when pushing the ballast downwards in the sleeper is not transmitted to the supporting portion of the tamping tool portion, so that the supporting portion of the tamping tool portion can be reduced in size and weight. Furthermore, since the tamping tool part and its support part are connected by the connecting means having the vibration isolating member, it is possible to reduce the vibration transmitted from the tamping tool part side to the support member or the pedestal of the apparatus.

According to the second aspect of the present invention, since the link and the support shaft of the support member have a vibration-proof structure, the beater tip can be easily removed from the ballast, and as a result, a large reaction force is not received. The effect that the beater can be easily inserted into the ballast is obtained.

According to the third aspect of the present invention, since the rotation range of the link can be limited by the stopper, it is possible to properly maintain the angle of the beater with respect to the ballast, and the beater can be inserted smoothly and effectively. The effect is obtained.

According to the invention of claim 4, since the vibration isolating member is provided on each of the first and second connecting shafts arranged in the orthogonal direction, vibration from any direction transmitted to the support member of the beater is alleviated. The effect of being able to be obtained is obtained.

According to the fifth aspect of the present invention, the block-shaped vibration isolating member provided on one of the connecting shafts absorbs a large vibration along the axial direction of the connecting shaft, and the block-like vibration isolating member provided on the other connecting shaft forms the block shape. Vibrations in directions other than the vibration damping member can be damped, and as a result, vibrations in all directions can be damped by these vibration damping members.

According to the sixth aspect of the invention, it is possible to obtain the effect that the vibrations in all directions can be absorbed by the two cylindrical vibration isolating members arranged orthogonally.

According to the invention of claim 7, when the ballast on the inclined surface is tamped, the beater provided in the tamping tool portion is provided because the urging means is provided even if the gantry is oriented in a direction perpendicular to the inclined surface. It faces in a direction almost orthogonal to the inclined surface. Therefore, the work of pushing the ballast under the sleepers can be surely performed even on the slope, so that the application range of the device is wide.

In the eighth aspect of the invention, since the swaying of the tamping tool portion due to the vibration of the beater when the apparatus is moved can be prevented by the cushioning member and the smoothing member, the position of the beater with respect to the sleeper is surely performed. It is possible to improve work efficiency.

[Brief description of drawings]

FIG. 1 is a side view showing a first embodiment of a roadbed tamping device of the present invention, showing a stored state of a tamping tool.

FIG. 2 is a side view showing a state in which a beater is inserted in the ballast in the first embodiment.

FIG. 3 is a side view showing a state in which the beater tip is pushed downwardly in the sleeper in the first embodiment.

FIG. 4 is a side view showing a working state in a place where sleeper intervals are different in the first embodiment.

FIG. 5 is an enlarged side view of a tamping tool unit according to the first embodiment.

FIG. 6 is an enlarged front view of a tamping tool unit according to the first embodiment.

7 is a cross-sectional view taken along line YY of FIG.

8 is a cross-sectional view taken along line XX of FIG.

FIG. 9 is an exploded perspective view of a connecting means portion in the first embodiment.

FIG. 10 is a side view showing a first embodiment when tamping a ballast on a slope.

FIG. 11 is a side view showing a second embodiment of the roadbed tamping device of the present invention, which is provided on a vehicle traveling on a track.

FIG. 12 is an enlarged side view of a tamping tool section and a slider in the second embodiment.

FIG. 13 is a side view showing a second embodiment when tamping the ballast on the slope.

FIG. 14 is an enlarged side view of a tamping tool section according to the third embodiment of the present invention.

FIG. 15 is an enlarged front view of a tamping tool unit according to the third embodiment.

16 is a cross-sectional view taken along line YY of FIG.

17 is a cross-sectional view taken along line XX of FIG.

FIG. 18 is an exploded perspective view of a connecting means portion in the third embodiment.

[Explanation of symbols]

1 ... Tamping tool 2 ... Vibration motor 3 ... beater 4 ... Stand 5 ... Guide member 6 ... Slider 6a, 8a ... Support shaft 6b, 8b ... Anti-vibration member 7 ... Link 8 ... Support member 9 ... Connecting means 10 ... Stopper 13 ... Lifting cylinder 21, 22, 65, 66 ... Support frame 23 ... Mounting plate 30 ... End plate 31 ... Mounting hole 32 ... Side plate 41 ... First connecting shaft 42 ... Second connecting shaft 43, 44 ... Block 43a, 44a ... Shaft hole 45 ... Block-shaped anti-vibration member 48 ... Cylindrical anti-vibration member 51 ... Color 60 ... Vehicle 61 ... Mounting frame 62 ... Operation box 63 ... Operation sheet 64 ... Coil spring 67 ... Buffer member 68 ... Board 69 ... Smooth member

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-49-76202 (JP, A) JP-A-6-185003 (JP, A) Actual opening Flat 2-78608 (JP, U) Actual opening Sho-49- 89807 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) E01B 27/16

Claims (8)

(57) [Claims] 1. A vibration motor and a vibration motor
Tamping tool part with a beater that vibrates
A gantry equipped with a tamping tool and the pedestal above and below
The guide member that is installed in the direction
Supported slider, the pedestal of the device and the slider
Between the guide member and the slider.
Tamping with a lifting cylinder for lifting and lowering
In the device, centering on a spindle provided for the slider,
A link whose end rotates up and down, and a tip of this link rotatably supported via a support shaft.
A support member for the tamping tool part, and a vibration-proof member for the support member and the tamping tool part.
A slider and a tamping tool connected to the slider.
Section, the lifting cylinder is opened so that
Roadbed tamping equipment characterized by descending by weight
Place 2. The roadbed tamping device according to claim 1, wherein a vibration isolating member is provided on a support shaft portion connecting the slider and the link, and the link and the supporting member of the tamping tool portion. 3. The track bed tamping device according to claim 1, further comprising a stopper for restricting a rotation angle of the link with respect to a support member of the slider and the tamping tool portion. 4. A connecting means provided between the tamping tool part and a supporting member thereof, the first and second connecting shafts being arranged in orthogonal directions, and between each connecting shaft and the tamping tool part or its supporting member. The roadbed tamping device according to claim 1, 2 or 3, wherein the vibration damping member is provided on each of the above. 5. A vibration isolating member provided on one of the first and second connecting shafts is a block-like vibration isolating member for absorbing vibrations along the axial direction of the connecting shaft, and is provided on the other connecting shaft. The ballast tamping device according to claim 4, wherein the member is a cylindrical vibration-damping member that wraps around the connecting shaft. 6. The vibration isolating member provided on each of the first and second connecting shafts is a cylindrical vibration isolating member enclosing the respective connecting shafts from the surroundings . Roadbed tamping device. 7. The urging means for urging the tamping tool part toward the gantry side is provided between the slider and the tamping tool part or the support member. The bed tamping device according to claim 3, claim 4, claim 5, or claim 6. 8. The trackbed according to claim 7, wherein an elastic cushioning member and a smooth member having a smooth surface are provided at positions facing each other between the slider and the tamping tool portion. Tamping device.